Ambient intelligence (short AmI) describes an environment that senses and responds to the presence of people using electronic devices. These devices support people through their everyday life activities in an unobtrusive way. They are using information and intelligence that is hidden in the network of the devices. All devices are integrated in the environment and disappear into their surroundings. This vision is closely related to intelligend service systems, where technology is able to provide context aware, personalized, adaptive and anticipatory services to their users.